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Xiphactinus vetus
Taxonomy
Polygonodon vetus was named by Leidy (1856). It is not extant. It is the type species of Polygonodon.
It was recombined as Xiphactinus vetus by Schwimmer et al. (1997), Shimada et al. (2006) and Hoganson et al. (2019).
It was recombined as Xiphactinus vetus by Schwimmer et al. (1997), Shimada et al. (2006) and Hoganson et al. (2019).
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1856 | Polygonodon vetus Leidy p. 221 |
| 1858 | Polygonodon rectus Leidy p. 218 |
| 1872 | Portheus angulatus Cope |
| 1873 | Erisichthe angulatus Cope p. 2 |
| 1902 | Protosphyraena angulata Hay p. 379 |
| 1902 | Polygonodon rectus Hay p. 473 |
| 1902 | Polygonodon vetus Hay p. 473 |
| 1930 | Polygonodon rectus Hay p. 264 |
| 1930 | Polygonodon vetus Hay p. 264 |
| 1967 | Polygonodon rectus Miller p. 229 |
| 1997 | Xiphactinus vetus Schwimmer et al. p. 611 |
| 2006 | Xiphactinus vetus Shimada et al. p. 24 |
| 2019 | Xiphactinus vetus Hoganson et al. p. 53 figs. 12.4-12.6 |
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
†Xiphactinus vetus Leidy 1856
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Invalid names: Polygonodon rectus Leidy 1858 [synonym], Portheus angulatus Cope 1872 [synonym]
Diagnosis
No diagnoses are available